package lab02.test36;

/**
 * Created by Adminitrator on 2017/11/9.
 */
public class Undergraduate extends Student {
    @Override
    String calGrade() {
        //得到平均成绩
        double avg=calAverage();
        if (avg>=80&&avg<=100)
            grade="优秀";
        else if (avg>=70&&avg<=80)
            grade="良好";
        else  if (avg>=60&&avg<=70)
            grade="一般";
        else  if (avg>=50&&avg<=60)
            grade="及格";
        else grade="不及格";

        return grade;
    }
}
